Put out the light; also knock out a mans eye. To douse is to lower in haste, as Douse the top-sail Glim, gleam, glimmer, are variants of the same word.

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And so you would turn honest, Captain Goffe, agrazing, would ye, said an old weather-beaten pirate who had but one eye; what though he . made my eye dowse the glim . he is an honest man .The Pirate, chap. xxxiii.